Respuesta :

Answer

[tex]3x - 4 < - 19[/tex]

[tex] = x < - 5[/tex]

[tex]3x -4 < -19 \\\\\implies 3x < -19 +4 \\\\\implies 3x< -15\\\\\implies x < -\dfrac{15}3\\\\\implies x< -5\\\\\text{Interval,}~ (-\infty, -5)[/tex]